A WordPress plug-in used to build faster-loading web pages was discovered to contain a privilege escalation vulnerability that allows unauthorized attackers to inject malicious HTML code into the main page.
In a company blog post yesterday, researchers at WebARX disclosed the bug, which resides in the "MP for WP – Accelerated Mobile Pages" plug-in. The software's developers patched the issue two weeks ago in its latest release, version 0.9.97.20.
Blog author and WebARX researcher Luka Šikić explains that the flaw is "located in the
ampforwp_save_steps_data which is called to save settings during the installation wizard. It’s been registered as
ajax hook." The problem is, the plug-in allows every registered user, irrespective of account role, to call Ajax hooks.
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